Toxic effect of contact w venomous marine plant, undet, subs

This code signifies a toxic reaction resulting from direct skin contact with an unidentified venomous marine plant. The "undetermined" nature indicates that the specific type of marine plant causing the envenomation is not documented. This code is specifically for follow-up care after the initial treatment.

Use this code for subsequent encounters when a patient presents for ongoing management, monitoring, or treatment of symptoms related to a toxic effect from an unspecified venomous marine plant. This includes situations where the patient is returning for wound care, pain management, or to assess the resolution of the initial reaction.

• Assign this code only for encounters following the initial treatment of the toxic effect.
• Ensure documentation clearly states the encounter is for follow-up care and that the marine plant is unspecified.
• If the specific marine plant is identified, a more precise code from the T63.71 category should be used.